Find the Product $( 3 z - 3 t ) ^ { 2 }$

question 33

Multiple Choice

Find the product. $( 3 z - 3 t ) ^ { 2 }$

• A) \(9 z ^ { 2 } - 3 z - 3 t + 9 t ^ { 2 }\)
• B) \(9 z ^ { 2 } - 9 t ^ { 2 }\)
• C) \(9 z ^ { 2 } + 9 t ^ { 2 }\)
• D) \(9 z ^ { 2 } - 18 z t + 9 t ^ { 2 }\)
• E) \(9 z ^ { 2 } - 9 z t + 9 t ^ { 2 }\)

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Definitions:

Correlation

A quantitative measure demonstrating how closely two or more variables vary together.

Causation

The action of causing something, indicating a relationship between two events where one is the result of the other.

Third-variable Problem

The third-variable problem occurs when a previously unconsidered variable affects both variables of interest, potentially falsely suggesting a causal relationship between them.

Correlational Studies

Research methods used to examine a relationship between two or more variables without manipulating them.